Glad you asked. Astronomers estimate that there are at least 70 sextillion stars in the observable universe.
The nearest star to the Earth, apart from the Sun, is Proxima Centauri, which is 39.9 trillion (1012) kilometres, or 4.2 light-years away. Light from Proxima Centauri takes 4.2 years to reach Earth. Travelling at the orbital speed of the Space Shuttle (5 miles per second, almost 30,000 kilometres per hour), it would take about 150,000 years to get there. More »
en.wikipedia.org
 
So how many stars are there in the Universe? It is easy to ask this question, but difficult for scientists to give a fair answer!
www.esa.int/esaSC/SEM75BS1VED_index_0.html · Cached
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The famous 1995 image of the Hubble Deep Field. By analysing the galaxies revealed here, astronomers made their first estimates of the history of star formation in the Universe. However, there are many stars that cannot be seen on this imag...
http://www.esa.int/esaSC/SEM75BS1VED_index_3.html
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Based on current estimates, there are between 200 - 400 billion stars in our galaxy (The Milky Way). There are possibly 100 billion galaxies in the Universe. So taking the average of our galaxy, gives approximately 3 x 10 24 stars. So about...
http://wiki.answers.com/Q/How_many_stars_are_in_the_uni...
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The usual way to determine the number of stars in the universe is to consider how many stars there are in the Milky Way, and then to multiply that number by our best guesstimate The number of stars in the visible universe is estimated to be...
http://sawaal.ibibo.com/events/how-stars-universe-51249...
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Our Galaxy called the Milky Way contains about 100 billion stars. There are believed to be some fifty billion galaxies in the observable universe. Wow, that's a lot of stars!
http://www.ottawa.rasc.ca/kid_space/kids_faq.html
He said there were likely many million more stars in the universe but the 70 sextillion figure was the number visible within range of modern telescopes.
www.cnn.com/2003/TECH/space/07/22/stars.survey/index.ht... www.cnn.com/2003/TECH/space/07/22/stars.survey/index.html · Cached
Also, rather consider how many stars there are in the Universe, we'll consider how many stars there are in the Milky Way.
www.faqs.org/faqs/astronomy/faq/part8/section-3.html · Cached
The pinpoints of light that you see in the night sky are stars. Your ability to see ... Windows to the Universe® is a registered trademark of UCAR. All Rights Reserved. Site policies and disclaimer...
www.windows.ucar.edu/tour/link=/the_universe/Stars.html www.windows.ucar.edu/tour/link=/the_universe/Stars.html · Cached
Among all exponential functions bt, the one with base e has many special properties.
torus.math.uiuc.edu/eggmath/Expon/numbere.html · Cached
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No one knows. But a lower limit would be a billion billion.
http://wiki.answers.com/Q/How_many_stars_there_are_in_u...
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